Human physiology past paper deck

Question 1

The total volume of air that can be moved from the lungs from full inspiration to full expiration can be defined as?

Answer 1

Forced vital capacity

Question 2

Which of brain respiratory control centres speeds the basic rhythm of breathing when activated?

Answer 2

Pneumotaxic area

Question 3

In which of these locations would you find peripheral chemoreceptors?

Answer 3

Aortic arch

Question 4

Which of these stimuli are central chemoreceptors more receptive to?

Answer 4

pH

Question 5

How many iron molecules does myoglobin contain?

Answer 5

1

Question 6

why is the blood oxygen content lower at high altitude?

Answer 6

Same oxygen and lower PO2

Question 7

What is the name for heart muscle?

Answer 7

myocardium

Question 8

The highest pressure within the vascular system generated during cardiac contraction is the definition for which of these terms?

Answer 8

Rate-pressureproduct

Question 9

Which of these parameters has the greatest influence on blood flow?

Answer 9

Blood vessel radius

Question 10

What is the natural intrinsic rhythm of the heart?

Answer 10

80 bpm

Question 11

Hypothermia occurs when the body core temperature fall below what?

Answer 11

35°C

Question 12

The age related decline in maximum oxygen uptake is related to?

Answer 12

loss of mitochondria

Question 13

Nonsteroid hormones are characteristically

Answer 13

aminoacid /protein based

Question 14

key characteristic of prostaglandins is that they

Answer 14

have anti-inflammatory effects

Question 15

The anterior pituitary is controlled by?

Answer 15

hypothalamic hormones

Question 16

Erythropoietin release is the primary stimulus for?

Answer 16

red blood cell production

Question 17

The process of plasmalemma depolarization involves which ion?

Answer 17

Na+

Question 18

During which state can a neuron only be stimulated by a stronger- than-normal stimulus?

Answer 18

the relative refractory period